DoubleClick Says Hackers
Tried to Enter Its Systems

Internet advertising network DoubleClick Inc. acknowledged that its computers were attacked by hackers this week and that its advertising and marketing services have been "minimally disrupted."

However, a DoubleClick spokesman said the disruptions aren't due to hackers, but rather because of the company's need to shut down its systems to investigate the attacks. DoubleClick notified customers and law-enforcement authorities...